Lotus Elan

1969 Elan S4 Tandem Master Brake Cylinder Question

PostPost by: Certified Lotus » Mon Nov 02, 2015 2:28 am

The factory manual and Buckland's book both do not show this tandem brake master cylinder. I've searched the forums without luck to identify it. Can anyone show me what the OEM master brake cylinder looks like for this car? Does the OEM version have a cork as the float for the cap connection? This car does not have vacuum assist and is left hand drive (USA).

This could have also come from an Elan Sprint as parts of this car came from a Sprint.

DSC06856.jpg and

DSC06857.jpg and

DSC06859.jpg and

DSC06852.jpg and
Glen
65 Elan S2 - 26/4055
72 Europa - 74/2358R
69 Elan S4 - 45/7941
64 Elan S1 - 26/0379
12 Colin 30 - Lotus Racing Kart
07 Exige S - Wicked Road/Track Car
07 Exige S - Fast Road/Track Car
06 Elise - Track pack
User avatar
Certified Lotus
Coveted Fifth Gear
Coveted Fifth Gear
 
Posts: 1189
Joined: 04 Aug 2014
Location: Princeton, NJ

PostPost by: Mazzini » Mon Nov 02, 2015 8:14 am

Think it was fitted to Federal Elans and Plus 2's. Does your car have a brake fail warning light on the dash?
User avatar
Mazzini
Coveted Fifth Gear
Coveted Fifth Gear
 
Posts: 1632
Joined: 11 Dec 2010
Location: NE UK

PostPost by: pharriso » Mon Nov 02, 2015 10:26 am

Glenn, it looks exactly like that, as I said in your other thread you have the SOVY system fitted to a federal tandem system' it's all original!! Ray has a rebuild kit if you need it.
Phil Harrison
1972 Elan Sprint 0260K
User avatar
pharriso
Coveted Fifth Gear
Coveted Fifth Gear
 
Posts: 2506
Joined: 15 Sep 2010
Location: Long Island NY, USA

PostPost by: Certified Lotus » Mon Nov 02, 2015 11:30 am

Mazzini, yes I have the brake fail warning light on the dash.

Phil, I looked everywhere for info in the prior posts on this site on the sovy tandem cylinder and only found one post which didn't give me a lot of information. I'm suspect of any brake master cylinder theses days as I've seen a number of variations and my own Elan S1 came with a tandem master that was not OEM. I'm just trying to figure out if this is original to the car and if so, is the float really made of cork?
Glen
65 Elan S2 - 26/4055
72 Europa - 74/2358R
69 Elan S4 - 45/7941
64 Elan S1 - 26/0379
12 Colin 30 - Lotus Racing Kart
07 Exige S - Wicked Road/Track Car
07 Exige S - Fast Road/Track Car
06 Elise - Track pack
User avatar
Certified Lotus
Coveted Fifth Gear
Coveted Fifth Gear
 
Posts: 1189
Joined: 04 Aug 2014
Location: Princeton, NJ

PostPost by: nmauduit » Mon Nov 02, 2015 12:15 pm

I don't know if the cork is original, if it is it is enclosed in an aluminum tube on mine :

sovy top.jpg and
sovy top
S4SE 36/8198
User avatar
nmauduit
Coveted Fifth Gear
Coveted Fifth Gear
 
Posts: 1156
Joined: 02 Sep 2013
Location: France

PostPost by: Certified Lotus » Mon Nov 02, 2015 12:47 pm

nmauduit, that photo is exactly what I was looking for. Thanks. Now we need to see if others have the same system?
Glen
65 Elan S2 - 26/4055
72 Europa - 74/2358R
69 Elan S4 - 45/7941
64 Elan S1 - 26/0379
12 Colin 30 - Lotus Racing Kart
07 Exige S - Wicked Road/Track Car
07 Exige S - Fast Road/Track Car
06 Elise - Track pack
User avatar
Certified Lotus
Coveted Fifth Gear
Coveted Fifth Gear
 
Posts: 1189
Joined: 04 Aug 2014
Location: Princeton, NJ

PostPost by: oldchieft » Mon Nov 02, 2015 2:33 pm

I think Girling had their own float alarm soon after that master cylinder.

When that one was made the Girlling alarm was a valve.

IMG_1255_1024.jpg and
Master cylinder a delta P valva


I can post a section of the valve if you want but you would be better going for the simple answer.

Jon the Chief
oldchieft
Third Gear
Third Gear
 
Posts: 397
Joined: 17 Sep 2013
Location: Near Wolverhampton

PostPost by: gjz30075 » Mon Nov 02, 2015 2:46 pm

Certified Lotus wrote:nmauduit, that photo is exactly what I was looking for. Thanks. Now we need to see if others with cars built in the same time frame have the same system?


Fixed it for you :-)
Greg Z
45/0243K Sprint
36/5727 pre airflow coupe
User avatar
gjz30075
Coveted Fifth Gear
Coveted Fifth Gear
 
Posts: 2749
Joined: 12 Sep 2003
Location: Roswell, Georgia, USA

PostPost by: pharriso » Mon Nov 02, 2015 3:17 pm

Glenn, not sure if tandem master cylinders with the Sovy device were standard in 1969, but they certainly were on 1972 federal sprints.

You seem to be missing the aluminum can around the cork... But you can adapt new replacement parts from jaguar applications. Will post details later.
Phil Harrison
1972 Elan Sprint 0260K
User avatar
pharriso
Coveted Fifth Gear
Coveted Fifth Gear
 
Posts: 2506
Joined: 15 Sep 2010
Location: Long Island NY, USA

PostPost by: pharriso » Mon Nov 02, 2015 6:15 pm

Glen, to set your mind at rest here is mine after restoration:
SOVYCan_Replated1.JPG and


SNG Barrett sell the Jag unit that you can use for parts - http://www.sngbarratt.com/ProductDetails.aspx?id=f65fabf1-a6c9-46f5-b191-1172406bac46&b=US

Here's the posting on restoration - http://www.lotuselan.net/forums/lotus-suspension-f42/elan-part-found-stock-local-liquor-store-t14800.html
Phil Harrison
1972 Elan Sprint 0260K
User avatar
pharriso
Coveted Fifth Gear
Coveted Fifth Gear
 
Posts: 2506
Joined: 15 Sep 2010
Location: Long Island NY, USA

PostPost by: Certified Lotus » Mon Nov 02, 2015 9:10 pm

Phil, no wonder I couldn't find the post for the Sovy, I didn't look up liquor store. Now what was I thinking :D :D :D

I just located a new sovy OEM cap from a reliable source along with some other impossible to find parts that I have been looking for around the world. One step closer to completing my S4 with factory original parts.
Glen
65 Elan S2 - 26/4055
72 Europa - 74/2358R
69 Elan S4 - 45/7941
64 Elan S1 - 26/0379
12 Colin 30 - Lotus Racing Kart
07 Exige S - Wicked Road/Track Car
07 Exige S - Fast Road/Track Car
06 Elise - Track pack
User avatar
Certified Lotus
Coveted Fifth Gear
Coveted Fifth Gear
 
Posts: 1189
Joined: 04 Aug 2014
Location: Princeton, NJ

PostPost by: pharriso » Mon Nov 02, 2015 9:19 pm

Certified Lotus wrote:One step closer to completing my S4 with factory original parts.


Only problem with that is your car seems to have many Sprint parts!
Phil Harrison
1972 Elan Sprint 0260K
User avatar
pharriso
Coveted Fifth Gear
Coveted Fifth Gear
 
Posts: 2506
Joined: 15 Sep 2010
Location: Long Island NY, USA

PostPost by: Certified Lotus » Mon Nov 02, 2015 9:26 pm

Yeah, yeah..........an original S4 with tasteful Sprint upgrades. The best of both worlds 'cause there is no reason to only have parts from one model year :wink:
Glen
65 Elan S2 - 26/4055
72 Europa - 74/2358R
69 Elan S4 - 45/7941
64 Elan S1 - 26/0379
12 Colin 30 - Lotus Racing Kart
07 Exige S - Wicked Road/Track Car
07 Exige S - Fast Road/Track Car
06 Elise - Track pack
User avatar
Certified Lotus
Coveted Fifth Gear
Coveted Fifth Gear
 
Posts: 1189
Joined: 04 Aug 2014
Location: Princeton, NJ

PostPost by: lotocone » Tue Nov 03, 2015 4:13 am

Glen, I have a Federal Elan built in Dec. 1969.

My master cylinder looks like yours, except that the Sovy unit is in storage now. The plastic part between the master cyl and the metal container cracked, so I just have a plastic cap on the reservoir like Jon the Chief's picture shows. I have the dash warning light also.

Bob
Bob
1969 S4
lotocone
Third Gear
Third Gear
 
Posts: 256
Joined: 09 Feb 2010
Location: Michigan

PostPost by: Certified Lotus » Tue Nov 03, 2015 11:27 am

Bob, thanks for the confirmation! I wanted to be confident that the SAVOY part was original so when I replaced it at a rediculous price I wouldn't be too upset. I think this is the last hard to find part I need to finish restoring my S4 with Sprint enhancements.
Glen
65 Elan S2 - 26/4055
72 Europa - 74/2358R
69 Elan S4 - 45/7941
64 Elan S1 - 26/0379
12 Colin 30 - Lotus Racing Kart
07 Exige S - Wicked Road/Track Car
07 Exige S - Fast Road/Track Car
06 Elise - Track pack
User avatar
Certified Lotus
Coveted Fifth Gear
Coveted Fifth Gear
 
Posts: 1189
Joined: 04 Aug 2014
Location: Princeton, NJ
Next

Total Online:

Users browsing this forum: No registered users and 7 guests